KitScout

Categories › Web & Browser › Web search engines & search APIs

Subdomain API

MCP serverVerified domain · subdomain.appRemote● LiveFree to try

Find known subdomains of a domain. Passive data; may include historic entries. List or count.

Install

Remote server: your requests and data go to api.subdomain.app. Claude Code: claude mcp add --transport http subdomain-api https://api.subdomain.app/mcp · Claude app: Settings → Connectors → Add custom connector.

What it can do

The tools this server listed when we connected to it, in its own words.

  • find_subdomains — List known subdomains (hostnames) of a root domain. Data is passive (not active scanning): results are historic observations and may include
  • count_subdomains — Return only the total number of distinct subdomains known for a domain — no list. Cheap and low-token. Use when the user asks "how many subd

KitScout test notes

Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.

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